CN108612816A - Two-speed gear component - Google Patents

Two-speed gear component Download PDF

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Publication number
CN108612816A
CN108612816A CN201711113572.0A CN201711113572A CN108612816A CN 108612816 A CN108612816 A CN 108612816A CN 201711113572 A CN201711113572 A CN 201711113572A CN 108612816 A CN108612816 A CN 108612816A
Authority
CN
China
Prior art keywords
clutch
gear
way clutch
housing
actuator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201711113572.0A
Other languages
Chinese (zh)
Other versions
CN108612816B (en
Inventor
B.帕尔费
L.A.里拉
M.特贝
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atieva Inc
Yuan Jie Co
Original Assignee
Yuan Jie Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of CN108612816A publication Critical patent/CN108612816A/en
Application granted granted Critical
Publication of CN108612816B publication Critical patent/CN108612816B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/46—Gearings having only two central gears, connected by orbital gears
    • F16H3/48—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears
    • F16H3/52—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears
    • F16H3/54—Gearings having only two central gears, connected by orbital gears with single orbital gears or pairs of rigidly-connected orbital gears comprising orbital spur gears one of the central gears being internally toothed and the other externally toothed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/70—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/064—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls
    • F16D41/066—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by rolling and having a circular cross-section, e.g. balls all members having the same size and only one of the two surfaces being cylindrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D47/00—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings
    • F16D47/04—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings of which at least one is a freewheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/08—General details of gearing of gearings with members having orbital motion
    • F16H57/082—Planet carriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D2041/0608—Races with a regular polygon shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/04—Freewheels or freewheel clutches combined with a clutch for locking the driving and driven members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02086—Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02091—Measures for reducing weight of gearbox
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/0021—Transmissions for multiple ratios specially adapted for electric vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
    • F16H2200/0034—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising two forward speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
    • F16H2200/2005—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with one sets of orbital gears
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
    • F16H2200/2069—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes using two freewheel mechanism
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H2200/00—Transmissions for multiple ratios
    • F16H2200/20—Transmissions using gears with orbital motion
    • F16H2200/2079—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches
    • F16H2200/2084—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches two freewheel mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Transmission Devices (AREA)

Abstract

A kind of two-speed gear component is disclosed, including：Input gear, wherein dual clutch pack are contained in input gear, and dual clutch pack includes：Clutch housing；The first one-way clutch assembly between input gear and clutch housing, wherein input gear is locked to clutch housing by the engagement of the first one-way clutch assembly；And the second one-way clutch assembly between clutch housing and anchor hub, wherein clutch housing is locked to anchor hub by the engagement of the second one-way clutch assembly；And output gear, wherein planetary gear set are contained in output gear, planetary gear set includes：It is rigidly coupled to the central gear of clutch housing；Multiple pinion gears, wherein each pinion gear is engaged with central gear and gear ring, wherein gear ring corresponds to the inner surface of output gear；With the pinion frame for being rigidly coupled to input gear, wherein each pinion gear is rotatably mounted on pinion frame.

Description

Two-speed gear component
Technical field
This patent disclosure relates generally to a kind of vehicles, double more particularly, to a kind of compact being highly suitable for electric vehicle Fast gear assembly.
Background technology
To cope with the consumer demand that constantly raised fuel price and global warming dire consequences are driven, garage Industry slowly starts to receive to minimum discharge, the demand of high efficiency automobile.Although some in industry are making great efforts to pass through More efficient internal combustion engine is designed to realize these targets, but hybrid power or all-electric drive system are then integrated into it by other In vehicle battle array.
The verified power drive system for electric vehicle (EV) is highly reliable and is capable of providing remarkable property Energy.Further, since motor generates available torque and power in very wide motor speed range, thus they do not need it is all Multi-speed transmission as needed for conventional vehicles driven by the internal combustion engine.
Although multi speed transmission is may not be needed in the vehicle with Electric Drive system, in acceleration and most high speed In terms of degree, this gear-box can be used for enhancing the performance of EV.Therefor it is required that a kind of small-sized, light-weight, high efficiency and energy The multi speed transmission for the torque that enough processing are provided by the motor in electric vehicle.The present invention provides this gearboxes.
Invention content
The present invention provides a kind of two-speed gear component comprising is rotatably mounted to the input gear of anchor hub and defeated Go out gear.Preferably, the idle pulley input gear and idle pulley that output and input gear and correspond to idler sheave assemblies of two-speed gear component Output gear.
Two-speed gear component further includes the dual clutch pack being contained in input gear.Dual clutch pack includes (i) Clutch housing；(ii) the first one-way clutch assembly, wherein first one-way clutch assembly is located at the input gear Inner surface and the outer surface of the clutch housing between, wherein the engagement of first one-way clutch assembly will be described defeated Enter gear and is locked to the clutch housing；(iii) second one-way clutch assembly, wherein the second one-way clutch group Part is located between the inner surface and the outer surface of the anchor hub of the clutch housing, wherein the second one-way clutch group The clutch housing is locked to the anchor hub by the engagement of part.
First one-way clutch assembly may include first group of multiple one-way clutch, when engaged, in input gear When being rotated in a first direction around clutch housing by input gear be locked to clutch housing and second group it is multiple unidirectionally from Input gear is locked to clutch by clutch around clutch housing in input gear when second direction rotates when engaged Device shell, wherein the first and second directions are opposite each other.
Each one-way clutch of first one-way clutch assembly can also include the inner surface (example positioned at input gear Such as, clutch cam reactor surface) clutch between the outer surface (for example, clutch cam surface) of clutch housing Pin, clutch actuator (for example, hydraulic actuator) and clutch pin stretcher (for example, spring).First one-way clutch group Each clutch actuator in part can be in the second mode that the first mode and actuator that actuator does not activate are activated Operation.When clutch actuator does not activate, clutch pin stretcher forces clutch pin to engage, to lock input gear To clutch housing.Upon actuation, clutch actuator forces clutch pin to be disengaged.
Second one-way clutch assembly may include first group of multiple one-way clutch, when engaged, in bell housing Bell housing is locked in stationary hub and second group of multiple one-way clutch when body rotates in a first direction around anchor hub Clutch housing is locked to anchor hub by device around anchor hub in clutch housing when second direction rotates when engaged, Wherein the first and second directions are opposite each other.
Each one-way clutch of second one-way clutch assembly can also include the inner surface (example positioned at clutch housing Such as, clutch cam surface) clutch pin between the outer surface (for example, clutch cam reactor surface) of anchor hub, Clutch actuator (for example, hydraulic actuator) and clutch pin stretcher (for example, spring).Second one-way clutch assembly In each clutch actuator can in the flrst mode be operated when actuator does not activate, and when actuator is activated It is operated in two modes.Upon actuation, clutch actuator forces the engagement of clutch pin, to which bell housing is locked to fixation Hub.When clutch actuator does not activate, clutch pin stretcher forces clutch pin to be disengaged.
Two-speed gear component further includes the planetary gear set being contained in output gear.Planetary gear set includes (i) It is rigidly coupled to the central gear of anchor hub (such as utilizing welding point)；(ii) multiple pinion gears, wherein each pinion gear It is engaged with central gear and gear ring, wherein gear ring corresponds to the inner surface of output gear；(iii) is rigidly coupled to described defeated Enter the pinion frame of gear, wherein each in the multiple pinion gear is rotatably mounted to the pinion frame. Each pinion gear can be maintained at via rear bearing hub in pinion frame, and be maintained in tooth rest lid by fore bearing hub. Preferably, the front surface of pinion frame and input gear is integrally formed.
Two-speed gear component can also include the first bearing component being installed on the bearing mounting sleeve cylinder of output gear, and Mounted on the second bearing component rigidly coupled on (for example, passing through welding point) to the bearing support members of input gear.
Rest part and the attached drawing of book can be explained with reference to realize to the further of property and advantage of the invention Understand.
Description of the drawings
It should be appreciated that attached drawing is only intended to illustrate rather than limits the scope of the invention, and it is not considered as painting in proportion System.In addition, the same reference mark on different figures is interpreted as referring to identical component or the component of similar functions.
Fig. 1 provides the simplified side view of electric drive trains；
Fig. 2 provides the cross-sectional view of dual clutch pack according to a preferred embodiment of the invention；
Fig. 3 provides the perspective view for the planetary gear set being contained in idle pulley output gear；
Fig. 4 provides the cross-sectional view of planetary gear set shown in Fig. 4；
Fig. 5 provides the viewgraph of cross-section of the two-speed gear component of the present invention, and the wherein cross section is across hydraulic actuation Device interception；
Fig. 6 provides the viewgraph of cross-section of the two-speed gear component of the present invention, and wherein cross section is logical across hydraulic fluid Road interception；
Fig. 7 shows the remodeling of dual clutch pack shown in Fig. 2, and the construction of the remodeling includes in outer clutch ring Single group one-way clutch；
Fig. 8 shows that the remodeling of dual clutch pack shown in Fig. 2, the construction of the remodeling include the list in interior clutch ring Group one-way clutch；With
Fig. 9 shows that the remodeling of dual clutch pack shown in Fig. 2, the construction of the remodeling include the list in outer clutch ring Single group one-way clutch in group one-way clutch and interior clutch ring.
Specific implementation mode
As it is used herein, singulative " one " (" a ", " an ") and "the" are also intended to including plural form, unless on Hereafter clearly indicate otherwise.As it is used herein, term " comprising ", " including ", " having " and/or "comprising" are specified described Feature, process steps, operation, the presence of element and/or component, but other one or more features are not precluded the presence or addition of, Processing step, operation, element, component and/or a combination thereof.As used herein, term "and/or" and symbol "/" are intended to include one Any and all combinations for the project that a or multiple correlations are listed.In addition, although term the first, the second etc. can be used for describing respectively Kind step, calculating or component, but these steps, calculate or component should not be limited by these terms, and are only used for one A step, calculates or component is from other steps, calculates or component is mutually distinguished.For example, the first calculating can be referred to as the second calculating, And similarly, first step can be referred to as second step, and similarly, and the first component can be referred to as second component, Without departing from the scope of the present invention.
Fig. 1 provides the side view of electric drive trains 100.For the sake of clarity, which does not show gear teeth.As shown, defeated Enter gear 101 and differential gear 103 is couple to by idle pulley gear assembly (idler gear assembly) 105.Hereinafter in detail The two fast gear assemblies of the thin description present invention, be designed to occupy with needed for conventional idler gear component identical space and Volume.As this design as a result, different vehicles can be provided, small modification, including idle running are only carried out to gearbox Unit replacement, to allow production vehicles line to extend (for example, base type and double speed high-performance model) with minimum cost.
The two-speed gear component of the present invention includes the dual clutch pack being contained in idle pulley input gear 107 and main appearance The planetary gear set being contained in idle pulley output gear 109.Dual clutch pack allows directly driving configuration and overdriving (overdrive) it is selected between configuring, directly drives configuration and quickly acceleration is provided, configuration of overdriving provides the high speed of enhancing Energy.Double clutch and planetary gear set are described below in detail.
Fig. 2 provides the cross-sectional view of dual clutch pack 200.The visible input gear corresponding to component in this view Gear teeth 201.Preferably and in the embodiment that shows, clutch pack 200 includes the outer shroud 203 of one-way clutch and unidirectional The inner ring 205 of clutch.In this embodiment, each ring of one-way clutch includes two groups of one-way clutch, to prevent connecing It is rotated in either direction when conjunction.As shown, every group of one-way clutch including outer shroud 203 includes preventing to be rotated in a first direction Six one-way clutch, and prevent six one-way clutch being rotated in second opposite direction.Similarly, including inner ring 205 every group of one-way clutch includes six one-way clutch for preventing to be rotated in a first direction, and is prevented opposite second Six one-way clutch that direction rotates.It should be appreciated that the quantity of the one-way clutch used in any ring of clutch can With different from the quantity of shown clutch, depend primarily on the design object of system, the overall dimension of dual clutch pack and The size of each individual clutch.
Each individual clutch of outer shroud 203 includes clutch pin 207 and hydraulic clutch actuator 209.Clutch pin Between the inner surface 211 of idle pulley input gear 107 and the cam face 213 of clutch housing, the idle pulley input gear 107 Inner surface 211 can also be referred to as clutch cam reactor surface herein.Between each pair of opposite clutch pin The stretcher of insertion preferably includes spring 215 (such as compressed spring), including the clutch of each pair of opposite clutch pin Device pin is from different one-way clutch groups.In other words, clutch pin 207a prevents from rotating in a first direction, and clutch Pin 207b prevents from rotating in second direction, wherein the first and second direction of rotation are opposite each other.
Each clutch pack including inner ring 205 is preferably by be set with including the clutch pack of outer shroud 203 is similar Meter construction.Therefore, individual clutch includes clutch pin 217 and hydraulic clutch actuator 219 each of in inner ring 205. Each clutch pin 217 is located at outer stationary hub surface 221 (also referred to as clutch cam reactor surface) and bell housing Between the cam face 223 of body.It is inserted into stretcher between each pair of opposite clutch pin 217, preferably by spring 225 (such as compressed spring) is constituted.
According to the present invention, when actuator 209 and 219 closes (off), the clutch pack in a ring is configured as Engagement (that is, locking), and the clutch pack in another ring is configured to not engage (that is, unlock), and work as actuator 209 It is inverted when being activated with 219.Preferably, actuator 209 and 219 is hydraulic actuator, but it is to be understood that can use other The actuator of type (for example, pneumatically or electrically actuator).
In a preferred embodiment of the invention, when hydraulic pressure is released and actuator 209 and 219 is closed (that is, hydraulic pressure is lived Plug is in its withdrawn position) when, cam face 213 and 223 is shaped so that the clutch in the outer shroud 203 of clutch pack connects (that is, locking) is closed, and the clutch in the inner ring 205 of clutch pack is disengaged (that is, unlock).As previously mentioned, spring 215 Ensure that clutch pin 207 engages when actuator 209 does not activate, and spring 225 ensures the clutch when actuator 219 does not activate Device pin 217 is disengaged.When hydraulic pressure is applied to actuator 209 and 219, so as to cause corresponding hydraulic piston stretching, extension when, Overcome the power that spring 215 and 225 is applied on corresponding clutch pin.Therefore, each clutch pin 207 towards it is adjacent from Clutch pin 207 is pushed, and the clutch in outer shroud 203 becomes to be disengaged (that is, unlock), and each clutch pin 217 are pushed towards adjacent clutch pin 217, so that engagement (locking) in the clutch in inner ring 205.
Fig. 3 provides the perspective view for being contained in the planetary gear set 300 in idle pulley output gear 109.It is shown in FIG. 4 The viewgraph of cross-section of the identical gear assembly.Fig. 3 and Fig. 4 all illustrates the tooth 301 of idle pulley output gear 109, central gear 303 With planet pinion 305.Although this component includes five pinion gears it should be appreciated that can be in planetary gear set The pinion gear of less or more quantity is used in part, this depends on the size of each gear of composition component.Idle pulley output gear 109 Inner surface 307 correspond to planetary gear set 300 gear ring.
Fig. 5 and Fig. 6 provides the viewgraph of cross-section of two fast gear assemblies, wherein shown in the view presented and Fig. 2 and 4 Viewgraph of cross-section is orthogonal.Fig. 5 provides the cross section by hydraulic actuator, and the view provided in Fig. 6 shows flow of pressurized Body path.
As shown, planetary gear set 300 is directly coupled to dual clutch pack 200.The front surface of clutch pack 501, more specifically, the front surface 501 of idle pulley input gear 107 is used as planet pinion carrier, and includes small for planet The rear bearing hub (bearing hub) 503 of gear 305.Fore bearing hub 505 is kept by wheel carrier (carrier) lid 507.By lazy The central gear 303 for taking turns the front surface 501 of input gear 107 is rigidly coupled to clutch housing 507.Central gear 303 with Rigid coupling between clutch housing 507 is preferably used welding point and is formed, but can also use and such as be made into Other manner that two components are bolted together is realized desired rigid coupling by single-piece.Clutch housing 507 with 509 coaxial alignment of hub, hub 509 are rigidly secured in fixed link 511 again.The inner surface 307 of idle pulley output gear 109 corresponds to The gear ring of planetary gear set 300, planetary gear set rotation of the idle pulley output gear 109 on bushing 513 and 515. Preferably, bushing 513 and 515 is brass bushing.Gear assembly 500 is rotated about a pair of bearings component 517 and 519.Shown In embodiment, bearing assembly 517 is mounted on part sleeve (collar) 521 of idle pulley output gear 109, and bearing assembly 519 are mounted in rigidly coupling (such as passing through welding point) to the bearing support members 523 of idle pulley input gear 107.
As described above, clutch pack 200 is rotated around anchor hub 509, wherein hub 509 is rigidly secured to fixed link 511.When hydraulic actuator 209 and 219 does not activate, i.e., when not having hydraulic fluid pressure, spring 215 forces in outer shroud 203 Clutch pin 207 engage, and spring 225 forces the clutch pin 217 in inner ring 205 to be disengaged.When clutch pin 207 connects When conjunction, idle pulley input gear 107 is locked into clutch housing 507, right to allow the operation that directly drives of gear assembly Accelerate all to be preferred in compared with low velocity and height.When hydraulic actuator 209 and 219 is activated, i.e., there ought be enough hydraulic oil Pressure when activating actuator, overcomes the power applied by spring 215 and 225.As a result, clutch pin 207 is disengaged, and Clutch pin 217 engages.This arrangement allows idle pulley input gear 107 to be rotated freely around clutch housing 507, while will be from Clutch case lock, to which central gear 303 is locked to anchor hub 509.This operation mode is preferred for running at high speed 's.
Fig. 6 provides the similar cross-sectional view provided with Fig. 5, and what it is in addition to interception is by clutch housing 507 Cross section, to show hydraulic fluid.Initially, hydraulic fluid (such as oil) passes through the sleeve of idle pulley output gear 109 Coaxillay aligned channel 601 in 521.Then, fluid flows through the channel 603 being coaxially aligned in central gear 503.Then Hydraulic fluid enters clutch housing 507, wherein hydraulic fluid before flowing into actuator 207 via channel 607 via logical The fan-shaped dispersion in road 605, and flow into actuator 207 via channel 609.
It will be appreciated that though preferred above-mentioned configuration can be modified to change system operatio.For example, by removing outside One group of one-way clutch in ring 203 either removes one in inner ring 205 group of one-way clutch or removes outer shroud 203 and interior One group of one-way clutch in ring 205, may be implemented to rotate freely, neutral state.This design, which can be used for for example increasing, to move Dynamic smoothness.In general, the one-way clutch group removed corresponds to motor disconnection/regeneration (regeneration) group of clutch. Fig. 7-9 shows above-mentioned improved clutch pack.Specifically, Fig. 7 is shown in which one group of one-way clutch from outer shroud The configuration 700 of 203 removals；Fig. 8 is shown in which the configuration 800 that one group of one-way clutch has been removed from inner ring 205；And Fig. 9 It is shown in which that one group of one-way clutch has been removed from outer shroud 203 and one group of one-way clutch is removed from inner ring 205 Configuration 900.In each of these configurations, Cam tighteners are (that is, the tensioning in stretcher 215 and inner ring in outer shroud Device 225) the liner or similar structures being resisted against with the end of corresponding clutch pin lie farthest away in corresponding actuator cavities Above or it is maintained by it.The structure is indicated by the liner 801 in the liner 701 and inner ring 205 in outer shroud 203 in the figure.
Generally system and method are described, to help to understand the details of the present invention.In certain situations Under, well known structure, material and/or operation are not shown in detail or are described to avoid the feature of the fuzzy present invention.At it In the case of him, detail is had been presented for provide a thorough understanding of the present invention.Those skilled in the relevant art will recognize that It arrives, in the case where not departing from the essentially or substantially feature of the present invention, the present invention can be implemented in other specific forms, such as with Adapt to particular system or device or situation or material or component.Therefore, disclosures and descriptions herein is intended to illustrate and not limit The scope of the present invention.

Claims (18)

1. a kind of two-speed gear component, including：
It is rotatably mounted to the input gear of anchor hub, wherein dual clutch pack is contained in the input gear, described Dual clutch pack includes：
Clutch housing；
First one-way clutch assembly, wherein first one-way clutch assembly is located at inner surface and the institute of the input gear Between the outer surface for stating clutch housing, wherein the input gear is locked to by the engagement of first one-way clutch assembly The clutch housing；With
Second one-way clutch assembly, wherein second one-way clutch assembly be located at the inner surface of the clutch housing with Between the outer surface of the anchor hub, wherein the clutch housing is locked to by the engagement of second one-way clutch assembly The anchor hub；With
Output gear, wherein planetary gear set are contained in the output gear, and the planetary gear set includes：
It is rigidly coupled to the central gear of the clutch housing；
Multiple pinion gears, wherein each pinion gear of the multiple pinion gear is engaged with the central gear and is engaged with gear ring, The wherein described gear ring corresponds to the inner surface of the output gear；With
It is rigidly coupled to the pinion frame of the input gear, wherein each in the multiple pinion gear is rotatably It is installed on the pinion frame.
2. two-speed gear component according to claim 1, each one-way clutch packet of first one-way clutch assembly It includes：
Clutch pin is located between the inner surface and the outer surface of the clutch housing of the input gear；
Clutch actuator；With
Clutch pin stretcher.
3. two-speed gear component according to claim 2, wherein the clutch actuator can be in first mode and second It is operated under pattern, wherein the clutch actuator does not activate in the first mode, and in the second mode In be actuating, wherein when the clutch actuator is in the first mode, the clutch pin stretcher forces institute It states clutch pin to engage and the input gear is locked to the clutch housing, and wherein when the clutch actuator When in the second mode, the clutch actuator forces the clutch pin to be disengaged.
4. the inner surface of the two-speed gear component according to any one of claim 2 and 3, the input gear includes Clutch cam reactor surface, and the outer surface of the clutch housing includes multiple clutch cam surfaces.
5. two-speed gear component according to claim 1, each one-way clutch packet of second one-way clutch assembly It includes：
Clutch pin is located between the inner surface and the outer surface of the anchor hub of the clutch housing；
Clutch actuator；With
Clutch pin stretcher.
6. two-speed gear component according to claim 5, wherein the clutch actuator can be in first mode and second It is operated under pattern, wherein the clutch actuator does not activate in the first mode, and in the second mode In be actuating, wherein when the clutch actuator be in the second mode, described in the clutch actuator forces Clutch pin engages and the bell housing is locked to the anchor hub, and wherein when the clutch actuator is in When the first mode, the clutch pin stretcher forces the clutch pin to be disengaged.
7. the two-speed gear component according to any one of claim 5 and 6, the inner surface packet of the clutch housing Multiple clutch cam surfaces are included, and the outer surface of the anchor hub includes clutch cam reactor surface.
8. the two-speed gear component according to any one of claim 2 and 5, the clutch actuator include hydraulic actuation Device.
9. the two-speed gear component according to any one of claim 2 and 5, the clutch pin stretcher includes spring.
10. two-speed gear component according to claim 1, first one-way clutch assembly further include：
First group of multiple one-way clutch, rotated along a first direction around the clutch housing when the input gear and When first group of multiple one-way clutch engagement, the input gear is locked to described by first group of multiple one-way clutch Clutch housing；With
Second group of multiple one-way clutch, be rotated in a second direction around the clutch housing when the input gear and When described second group multiple one-way clutch engagement, the input gear is locked to by second group of multiple one-way clutch The clutch housing, wherein the second direction is opposite to the first direction.
11. two-speed gear component according to claim 1, second one-way clutch assembly further include：
First group of multiple one-way clutch, when the clutch housing rotates and works as along a first direction around the anchor hub When first group of multiple one-way clutch engagement, the clutch housing is locked to by first group of multiple one-way clutch The anchor hub；With
Second group of multiple one-way clutch, when the clutch housing is rotated in a second direction around the anchor hub and When described second group multiple one-way clutch engagement, second group of multiple one-way clutch lock the clutch housing To the stationary hub, wherein the second direction is opposite to the first direction.
12. according to the two-speed gear component described in any one of claim 1,2,5,10 and 11, wherein the input gear pair Should be in the idle pulley input gear of idler sheave assemblies, and the wherein described output gear corresponds to the idle pulley output gear of the idler sheave assemblies Wheel.
13. two-speed gear component according to claim 1, each one-way clutch of first one-way clutch assembly and Each one-way clutch of second one-way clutch assembly further includes hydraulic clutch actuator, wherein the central gear is also Including the first hydraulic fluid channel, wherein the clutch housing further includes being fluidly coupled to first hydraulic fluid channel Multiple second hydraulic fluid channels, and to be fluidly coupled to described first single for wherein the multiple second hydraulic fluid channel To the hydraulic clutch actuator of clutch pack and second one-way clutch assembly.
14. according to the two-speed gear component described in any one of claim 1,2,5,10,11 and 13, the central gear passes through Welding point is rigidly coupled to the clutch housing.
15. two-speed gear component according to claim 1, the multiple pinion gear be maintained at the pinion frame and Between tooth rest lid, each pinion gear of the multiple pinion gear is maintained at via rear bearing hub in the pinion frame, And each pinion gear of the multiple pinion gear is maintained at by fore bearing hub in the tooth rest lid.
16. two-speed gear component according to claim 15, the front surface of the pinion frame and the input gear It is integrally formed.
Further include fixed link 17. according to the two-speed gear component described in any one of claim 1,2,5,10,11 and 13, Described in anchor hub be rigidly coupled to the fixed link.
Further include first bearing group 18. according to the two-speed gear component described in any one of claim 1,2,5,10,11 and 13 Part and second bearing component, the first bearing component are installed on the bearing mounting sleeve cylinder of the output gear, and described Second bearing component is installed on the bearing support members for being rigidly coupled to the input gear.
CN201711113572.0A 2016-12-13 2017-11-13 Two-speed gear assembly Active CN108612816B (en)

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US9797479B1 (en) * 2016-12-13 2017-10-24 Atieva, Inc. Compact dual speed gear assembly

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